MILLING OF WEAK RIGID PARTS BASED ON MRF FLEXIBLE AUXILIARY SUPPORT

ZHANG YongLiang; ZHANG ShuaiShuai; ZHANG Zhan; QIU Tao

doi:10.16579/j.issn.1001.9669.2021.04.015

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MILLING OF WEAK RIGID PARTS BASED ON MRF FLEXIBLE AUXILIARY SUPPORT

更新时间：2022-09-22

- MILLING OF WEAK RIGID PARTS BASED ON MRF FLEXIBLE AUXILIARY SUPPORT
- Journal of Mechanical Strength Vol. 43, Issue 4, Pages: 868-873(2021)
- 作者机构：
  
  1. 上海理工大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.04.015
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ZHANG YongLiang, ZHANG ShuaiShuai, ZHANG Zhan, et al. MILLING OF WEAK RIGID PARTS BASED ON MRF FLEXIBLE AUXILIARY SUPPORT. [J]. 43(4):868-873(2021)
DOI：

ZHANG YongLiang, ZHANG ShuaiShuai, ZHANG Zhan, et al. MILLING OF WEAK RIGID PARTS BASED ON MRF FLEXIBLE AUXILIARY SUPPORT. [J]. 43(4):868-873(2021) DOI： 10.16579/j.issn.1001.9669.2021.04.015.

摘要

设计了一套基于磁流变液的柔性辅助支撑装置,用于提高弱刚性零件的加工精度。利用有限元方法通过Comsol软件对装置磁感应强度进行仿真,研究其提供的支撑力大小,运用工程力学知识对加工工件进行力学分析、理论变形量计算以及对加工工件进行有限元加工变形仿真,研究不同加载电流状态下磁流变液辅助支撑装置对加工工件变形情况的影响。最后搭建试验台,在不同铣削参数以及磁流变辅助支撑装置加载不同电流的条件下进行铣削实验并测量加工工件的表面粗糙度以及平面度,研究铣削参数以及磁流变辅助支撑对工件加工表面质量的影响。结果表明,MRF辅助支撑装置可提高弱刚性工件的刚度,抑制加工变形,改善工件加工质量。

Abstract

A flexible auxiliary support device based on magnetorheological fluid is designed to improve the machining accuracy of weakly rigid parts. Use the finite element method to simulate the device’ s magnetic induction intensity through COMSOL software,study the support force provided by it,use engineering mechanics knowledge to perform mechanical analysis on the processed workpiece,theoretical deformation calculation and finite element processing deformation simulation on the processed workpiece,the research is different The influence of the auxiliary supporting device of the magnetorheological fluid on the deformation of the processed workpiece under the state of loading current. Finally,build a test stand,perform milling experiments under the conditions of different milling parameters and magnetorheological auxiliary support devices loading different currents and measure the surface roughness and flatness of the processed workpiece, study the milling parameters and magnetorheological auxiliary support on the workpiece processing surface The impact of quality. The results show that the MRF auxiliary support device can increase the rigidity of weakly rigid workpieces,suppress machining deformation,and improve the machining quality of workpieces.

关键词

磁流变液有限元三维磁场仿真变形量铣削试验加工精度

Keywords

Magnetorheological fluidFinite elementThree-dimensional magnetic field simulationDeformation amountMilling testMachining accuracy

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